Deserialized a list! Restructured project!

I finally got deserializing lists working. Exposing them to QML was not
a trivial task either. Note that I didn't do it the clean way. Nested
lists are not supported. But it works!

Because I got so frustarted at one point trying to implement things the
right way, I restructured the project to seperate the Sailfish code from
the Qt code and created a new, empty desktop project. The Qt code has
been transformed into a happy little library, to which the Sailfish OS
application links.

Note that QMake doesn't seem to strip the library for some reason.

sailfish/qml/components/videoplayer/VideoError.qml

@@ -0,0 +1,91 @@
+/*
+Sailfin: a Jellyfin client written using Qt
+Copyright (C) 2020 Chris Josten
+
+This library is free software; you can redistribute it and/or
+modify it under the terms of the GNU Lesser General Public
+License as published by the Free Software Foundation; either
+version 2.1 of the License, or (at your option) any later version.
+
+This library is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+Lesser General Public License for more details.
+
+You should have received a copy of the GNU Lesser General Public
+License along with this library; if not, write to the Free Software
+Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
+*/
+import QtQuick 2.6
+import Sailfish.Silica 1.0
+import QtMultimedia 5.6
+
+Rectangle {
+    id: videoError
+    property MediaPlayer player
+    color: pal.palette.overlayBackgroundColor
+    opacity: player.error === MediaPlayer.NoError ? 0.0 : 1.0
+    Behavior on opacity { FadeAnimator {} }
+
+    SilicaItem {
+        id: pal
+    }
+
+    Column {
+        anchors.centerIn: parent
+        anchors.margins: Theme.horizontalPageMargin
+
+        Label {
+            anchors.horizontalCenter: parent.horizontalCenter
+            font.pixelSize: Theme.fontSizeExtraLarge
+            color: Theme.errorColor
+            text: {
+                switch(player.error) {
+                case MediaPlayer.NoError:
+                    //: Just to be complete if the application shows a video playback error when there's no error.
+                    qsTr("No error");
+                    break;
+                case MediaPlayer.ResourceError:
+                    //: Video playback error: out of resources
+                    qsTr("Resource allocation error")
+                    break;
+                case MediaPlayer.FormatError:
+                    //: Video playback error: unsupported format/codec
+                    qsTr("Video format unsupported")
+                    break;
+                case MediaPlayer.NetworkError:
+                    //: Video playback error: network error
+                    qsTr("Network error")
+                    break;
+                case MediaPlayer.AccessDenied:
+                    //: Video playback error: access denied
+                    qsTr("Access denied")
+                    break;
+                case MediaPlayer.ServiceMissing:
+                    //: Video playback error: the media cannot be played because the media service could not be instantiated.
+                    qsTr("Media service missing")
+                    break;
+                }
+            }
+        }
+
+        Label {
+            wrapMode: Text.WordWrap
+            text: player.errorString
+            color: Theme.errorColor
+            width: videoError.width - Theme.horizontalPageMargin * 2
+            horizontalAlignment: Text.AlignHCenter
+        }
+
+        Item { width: 1; height: Theme.paddingLarge; }
+
+        ButtonLayout {
+            Button {
+                //: Button to retry loading a video after a failure
+                text: qsTr("Retry")
+                onClicked: player.play()
+            }
+        }
+    }
+
+}